Philips has been struggling with the economic damage caused by the recall of several million ventilators for a year and a half. Now the medical technology manufacturer is again reporting problems with machines that have already been replaced.

According to its own statements, the medical technology manufacturer Philips is again having difficulties with some ventilators. This time it is about machines that have already been replaced, according to a statement from the US pharmaceutical regulator FDA.

According to the announcement, the company informed the FDA that the insulating foam could come loose and thus reduce the ventilation pressure. Philips had replaced more than four million ventilators in the past 18 months over concerns the foam could emit toxins.

A Philips spokesman said that devices of the type Trilogy 100/200 are potentially affected by the recent difficulties, which are around three percent of the previously exchanged models.